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Chapter 23 — WOOD

Section 2309

California Building Code (Title 24, Part 2) · 2022 edition · updated 2026-09-12 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

2309.1 Wood Frame Construction Manual.

Structural design in accordance with the AWC WFCM shall be permitted for buildings assigned to Risk Category I or II subject to

the limitations of Section 1.1.3 of the AWC WFCM and the load assumptions contained therein. Structural elements beyond these limitations shall be designed in accordance with accepted engineering practice.

2309.1.1 Additional requirements. [DSA-SS, DSA-SS/CC, OSHPD 1R, 2 & 5] The use of the AWC WFCM is permit- ted provided the design and construction also comply with Sections 2304, 2305 and 2302.1, Item 1 or 2, and engineer- ing analysis is furnished demonstrating compliance.

TABLE 2308.7.1(1)

CEILING JOIST SPANS FOR COMMON LUMBER SPECIES (Uninhabitable attics without storage, live load = 10 psf, L/Δ = 240)

CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 5 psf
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 13-2 20-8 Note a Note a
12 Douglas Fir-Larch #1 12-8 19-11 Note a Note a
12 Douglas Fir-Larch #2 12-5 19-6 25-8 Note a
12 Douglas Fir-Larch #3 10-10 15-10 20-1 24-6
12 Hem-Fir SS 12-5 19-6 25-8 Note a
12 Hem-Fir #1 12-2 19-1 25-2 Note a
12 Hem-Fir #2 11-7 18-2 24-0 Note a
12 Hem-Fir #3 10-10 15-10 20-1 24-6
12 Southern Pine SS 12-11 20-3 Note a Note a
12 Southern Pine #1 12-5 19-6 25-8 Note a
12 Southern Pine #2 11-10 18-8 24-7 Note a
12 Southern Pine #3 10-1 14-11 18-9 22-9
12 Spruce-Pine-Fir SS 12-2 19-1 25-2 Note a
12 Spruce-Pine-Fir #1 11-10 18-8 24-7 Note a
12 Spruce-Pine-Fir #2 11-10 18-8 24-7 Note a
12 Spruce-Pine-Fir #3 10-10 15-10 20-1 24-6
16 Douglas Fir-Larch SS 11-11 18-9 24-8 Note a
16 Douglas Fir-Larch #1 11-6 18-1 23-10 Note a
16 Douglas Fir-Larch #2 11-3 17-8 23-0 Note a
16 Douglas Fir-Larch #3 9-5 13-9 17-5 21-3
16 Hem-Fir SS 11-3 17-8 23-4 Note a
16 Hem-Fir #1 11-0 17-4 22-10 Note a
16 Hem-Fir #2 10-6 16-6 21-9 Note a
16 Hem-Fir #3 9-5 13-9 17-5 21-3
16 Southern Pine SS 11-9 18-5 24-3 Note a
16 Southern Pine #1 11-3 17-8 23-4 Note a
16 Southern Pine #2 10-9 16-11 21-7 25-7
16 Southern Pine #3 8-9 12-11 16-3 19-9
16 Spruce-Pine-Fir SS 11-0 17-4 22-10 Note a
16 Spruce-Pine-Fir #1 10-9 16-11 22-4 Note a
16 Spruce-Pine-Fir #2 10-9 16-11 22-4 Note a
16 Spruce-Pine-Fir #3 9-5 13-9 17-5 21-3

(continued)

23-62 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.1(1)—continued CEILING JOIST SPANS FOR COMMON LUMBER SPECIES (Uninhabitable attics without storage, live load = 10 psf, L/Δ = 240)

CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 5 psf
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 11-3 17-8 23-3 Note a
19.2 Douglas Fir-Larch #1 10-10 17-0 22-5 Note a
19.2 Douglas Fir-Larch #2 10-7 16-7 21-0 25-8
19.2 Douglas Fir-Larch #3 8-7 12-6 15-10 19-5
19.2 Hem-Fir SS 10-7 16-8 21-11 Note a
19.2 Hem-Fir #1 10-4 16-4 21-6 Note a
19.2 Hem-Fir #2 9-11 15-7 20-6 25-3
19.2 Hem-Fir #3 8-7 12-6 15-10 19-5
19.2 Southern Pine SS 11-0 17-4 22-10 Note a
19.2 Southern Pine #1 10-7 16-8 22-0 Note a
19.2 Southern Pine #2 10-2 15-7 19-8 23-5
19.2 Southern Pine #3 8-0 11-9 14-10 18-0
19.2 Spruce-Pine-Fir SS 10-4 16-4 21-6 Note a
19.2 Spruce-Pine-Fir #1 10-2 15-11 21-0 25-8
19.2 Spruce-Pine-Fir #2 10-2 15-11 21-0 25-8
19.2 Spruce-Pine-Fir #3 8-7 12-6 15-10 19-5
24 Douglas Fir-Larch SS 10-5 16-4 21-7 Note a
24 Douglas Fir-Larch #1 10-0 15-9 20-1 24-6
24 Douglas Fir-Larch #2 9-10 14-10 18-9 22-11
24 Douglas Fir-Larch #3 7-8 11-2 14-2 17-4
24 Hem-Fir SS 9-10 15-6 20-5 Note a
24 Hem-Fir #1 9-8 15-2 19-7 23-11
24 Hem-Fir #2 9-2 14-5 18-6 22-7
24 Hem-Fir #3 7-8 11-2 14-2 17-4
24 Southern Pine SS 10-3 16-1 21-2 Note a
24 Southern Pine #1 9-10 15-6 20-5 24-0
24 Southern Pine #2 9-3 13-11 17-7 20-11
24 Southern Pine #3 7-2 10-6 13-3 16-1
24 Spruce-Pine-Fir SS 9-8 15-2 19-11 25-5
24 Spruce-Pine-Fir #1 9-5 14-9 18-9 22-11
24 Spruce-Pine-Fir #2 9-5 14-9 18-9 22-11
24 Spruce-Pine-Fir #3 7-8 11-2 14-2 17-4

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 10-5 16-4 21-7 Note a
12 Douglas Fir-Larch #1 10-0 15-9 20-1 24-6
12 Douglas Fir-Larch #2 9-10 14-10 18-9 22-11
12 Douglas Fir-Larch #3 7-8 11-2 14-2 17-4
12 Hem-Fir SS 9-10 15-6 20-5 Note a
12 Hem-Fir #1 9-8 15-2 19-7 23-11
12 Hem-Fir #2 9-2 14-5 18-6 22-7
12 Hem-Fir #3 7-8 11-2 14-2 17-4
12 Southern Pine SS 10-3 16-1 21-2 Note a
12 Southern Pine #1 9-10 15-6 20-5 24-0
12 Southern Pine #2 9-3 13-11 17-7 20-11
12 Southern Pine #3 7-2 10-6 13-3 16-1
12 Spruce-Pine-Fir SS 9-8 15-2 19-11 25-5
12 Spruce-Pine-Fir #1 9-5 14-9 18-9 22-11
12 Spruce-Pine-Fir #2 9-5 14-9 18-9 22-11
12 Spruce-Pine-Fir #3 7-8 11-2 14-2 17-4
16 Douglas Fir-Larch SS 9-6 14-11 19-7 25-0
16 Douglas Fir-Larch #1 9-1 13-9 17-5 21-3
16 Douglas Fir-Larch #2 8-9 12-10 16-3 19-10
16 Douglas Fir-Larch #3 6-8 9-8 12-4 15-0
16 Hem-Fir SS 8-11 14-1 18-6 23-8
16 Hem-Fir #1 8-9 13-5 16-10 20-8
16 Hem-Fir #2 8-4 12-8 16-0 19-7
16 Hem-Fir #3 6-8 9-8 12-4 15-0
16 Southern Pine SS 9-4 14-7 19-3 24-7
16 Southern Pine #1 8-11 14-0 17-9 20-9
16 Southern Pine #2 8-0 12-0 15-3 18-1
16 Southern Pine #3 6-2 9-2 11-6 14-0
16 Spruce-Pine-Fir SS 8-9 13-9 18-1 23-1
16 Spruce-Pine-Fir #1 8-7 12-10 16-3 19-10
16 Spruce-Pine-Fir #2 8-7 12-10 16-3 19-10
16 Spruce-Pine-Fir #3 6-8 9-8 12-4 15-0

(continued)

TABLE 2308.7.1(2)

CEILING JOIST SPANS FOR COMMON LUMBER SPECIES (Uninhabitable attics with limited storage, live load = 20 psf, L/Δ = 240)

23-64 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.1(2)—continued CEILING JOIST SPANS FOR COMMON LUMBER SPECIES (Uninhabitable attics with limited storage, live load = 20 psf, L/Δ = 240)

CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans Maximum ceiling joist spans
CEILING
JOIST SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 8-11 14-0 18-5 23-4
19.2 Douglas Fir-Larch #1 8-7 12-6 15-10 19-5
19.2 Douglas Fir-Larch #2 8-0 11-9 14-10 18-2
19.2 Douglas Fir-Larch #3 6-1 8-10 11-3 13-8
19.2 Hem-Fir SS 8-5 13-3 17-5 22-3
19.2 Hem-Fir #1 8-3 12-3 15-6 18-11
19.2 Hem-Fir #2 7-10 11-7 14-8 17-10
19.2 Hem-Fir #3 6-1 8-10 11-3 13-8
19.2 Southern Pine SS 8-9 13-9 18-2 23-1
19.2 Southern Pine #1 8-5 12-9 16-2 18-11
19.2 Southern Pine #2 7-4 11-0 13-11 16-6
19.2 Southern Pine #3 5-8 8-4 10-6 12-9
19.2 Spruce-Pine-Fir SS 8-3 12-11 17-1 21-8
19.2 Spruce-Pine-Fir #1 8-0 11-9 14-10 18-2
19.2 Spruce-Pine-Fir #2 8-0 11-9 14-10 18-2
19.2 Spruce-Pine-Fir #3 6-1 8-10 11-3 13-8
24 Douglas Fir-Larch SS 8-3 13-0 17-1 20-11
24 Douglas Fir-Larch #1 7-8 11-2 14-2 17-4
24 Douglas Fir-Larch #2 7-2 10-6 13-3 16-3
24 Douglas Fir-Larch #3 5-5 7-11 10-0 12-3
24 Hem-Fir SS 7-10 12-3 16-2 20-6
24 Hem-Fir #1 7-6 10-11 13-10 16-11
24 Hem-Fir #2 7-1 10-4 13-1 16-0
24 Hem-Fir #3 5-5 7-11 10-0 12-3
24 Southern Pine SS 8-1 12-9 16-10 21-6
24 Southern Pine #1 7-8 11-5 14-6 16-11
24 Southern Pine #2 6-7 9-10 12-6 14-9
24 Southern Pine #3 5-1 7-5 9-5 11-5
24 Spruce-Pine-Fir SS 7-8 12-0 15-10 19-5
24 Spruce-Pine-Fir #1 7-2 10-6 13-3 16-3
24 Spruce-Pine-Fir #2 7-2 10-6 13-3 16-3
24 Spruce-Pine-Fir #3 5-5 7-11 10-0 12-3

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 11-6 18-0 23-9 Note b Note b 11-6 18-0 23-5 Note b Note b
12 Douglas Fir-Larch #1 11-1 17-4 22-5 Note b Note b 10-6 15-4 19-5 23-9 Note b
12 Douglas Fir-Larch #2 10-10 16-7 21-0 25-8 Note b 9-10 14-4 18-2 22-3 25-9
12 Douglas Fir-Larch #3 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
12 Hem-Fir SS 10-10 17-0 22-5 Note b Note b 10-10 17-0 22-5 Note b Note b
12 Hem-Fir #1 10 -7 16-8 21-10 Note b Note b 10-3 14-11 18-11 23-2 Note b
12 Hem-Fir #2 10-1 15-11 20-8 25-3 Note b 9-8 14-2 17-11 21-11 25-5
12 Hem-Fir #3 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
12 Southern Pine SS 11-3 17-8 23-4 Note b Note b 11-3 17-8 23-4 Note b Note b
12 Southern Pine #1 10-10 17-0 22-5 26-0 26-0 10-6 15-8 19-10 23-2 Note b
12 Southern Pine #2 10-4 15-7 19-8 23-5 26-0 9-0 13-6 17-1 20-3 23-10
12 Southern Pine #3 8-0 11-9 14-10 18-0 21-4 6-11 10-2 12-10 15-7 18-6
12 Spruce-Pine-Fir SS 10-7 16-8 21-11 Note b Note b 10-7 16-8 21-9 Note b Note b
12 Spruce-Pine-Fir #1 10-4 16-3 21-0 25-8 Note b 9-10 14-4 18-2 22-3 25-9
12 Spruce-Pine-Fir #2 10-4 16-3 21-0 25-8 Note b 9-10 14-4 18-2 22-3 25-9
12 Spruce-Pine-Fir #3 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
16 Douglas Fir-Larch SS 10-5 16-4 21-7 Note b Note b 10-5 16-0 20-3 24-9 Note b
16 Douglas Fir-Larch #1 10-0 15-4 19-5 23-9 Note b 9-1 13-3 16-10 20-7 23-10
16 Douglas Fir-Larch #2 9-10 14-4 18-2 22-3 25-9 8-6 12-5 15-9 19-3 22-4
16 Douglas Fir-Larch #3 7-5 10-10 13-9 16-9 19-6 6-5 9-5 11-11 14-6 16-10
16 Hem-Fir SS 9-10 15-6 20-5 Note b Note b 9-10 15-6 19-11 24-4 Note b
16 Hem-Fir #1 9-8 14-11 18-11 23-2 Note b 8-10 12-11 16-5 20-0 23-3
16 Hem-Fir #2 9-2 14-2 17-11 21-11 25-5 8-5 12-3 15-6 18-11 22-0
16 Hem-Fir #3 7-5 10-10 13-9 16-9 19-6 6-5 9-5 11-11 14-6 16-10
16 Southern Pine SS 10-3 16-1 21-2 Note b Note b 10-3 16-1 21-2 25-7 Note b
16 Southern Pine #1 9-10 15-6 19-10 23-2 26-0 9-1 13-7 17-2 20-1 23-10
16 Southern Pine #2 9-0 13-6 17-1 20-3 23-10 7-9 11-8 14-9 17-6 20-8
16 Southern Pine #3 6-11 10-2 12-10 15-7 18-6 6-0 8-10 11-2 13-6 16-0
16 Spruce-Pine-Fir SS 9-8 15-2 19-11 25-5 Note b 9-8 14-10 18-10 23-0 Note b
16 Spruce-Pine-Fir #1 9-5 14-4 18-2 22-3 25-9 8-6 12-5 15-9 19-3 22-4
16 Spruce-Pine-Fir #2 9-5 14-4 18-2 22-3 25-9 8-6 12-5 15-9 19-3 22-4
16 Spruce-Pine-Fir #3 7-5 10-10 13-9 16-9 19-6 6-5 9-5 11-11 14-6 16-10

(continued)

TABLE 2308.7.2(1)

RAFTER SPANS FOR COMMON LUMBER SPECIES (Roof live load = 20 psf, ceiling not attached to rafters, L/Δ = 180)

23-66 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.2(1)—continued RAFTER SPANS FOR COMMON LUMBER SPECIES (Roof live load = 20 psf, ceiling not attached to rafters, L/Δ = 180)

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 9-10 15-5 20-4 25-11 Note b 9-10 14-7 18-6 22-7 Note b
19.2 Douglas Fir-Larch #1 9-5 14-0 17-9 21-8 25-2 8-4 12-2 15-4 18-9 21-9
19.2 Douglas Fir-Larch #2 8-11 13-1 16-7 20-3 23-6 7-9 11-4 14-4 17-7 20-4
19.2 Douglas Fir-Larch #3 6-9 9-11 12-7 15-4 17-9 5-10 8-7 10-10 13-3 15-5
19.2 Hem-Fir SS 9-3 14-7 19-2 24-6 Note b 9-3 14-4 18-2 22-3 25-9
19.2 Hem-Fir #1 9-1 13-8 17-4 21-1 24-6 8-1 11-10 15-0 18-4 21-3
19.2 Hem-Fir #2 8-8 12-11 16-4 20-0 23-2 7-8 11-2 14-2 17-4 20-1
19.2 Hem-Fir #3 6-9 9-11 12-7 15-4 17-9 5-10 8-7 10-10 13-3 15-5
19.2 Southern Pine SS 9-8 15-2 19-11 25-5 Note b 9-8 15-2 19-7 23-4 Note b
19.2 Southern Pine #1 9-3 14-3 18-1 21-2 25-2 8-4 12-4 15-8 18-4 21-9
19.2 Southern Pine #2 8-2 12-3 15-7 18-6 21-9 7-1 10-8 13-6 16-0 18-10
19.2 Southern Pine #3 6-4 9-4 11-9 14-3 16-10 5-6 8-1 10-2 12-4 14-7
19.2 Spruce-Pine-Fir SS 9-1 14-3 18-9 23-11 Note b 9-1 13-7 17-2 21-0 24-4
19.2 Spruce-Pine-Fir #1 8-10 13-1 16-7 20-3 23-6 7-9 11-4 14-4 17-7 20-4
19.2 Spruce-Pine-Fir #2 8-10 13-1 16-7 20-3 23-6 7-9 11-4 14-4 17-7 20-4
19.2 Spruce-Pine-Fir #3 6-9 9-11 12-7 15-4 17-9 5-10 8-7 10-10 13-3 15-5
24 Douglas Fir-Larch SS 9-1 14-4 18-10 23-4 Note b 8-11 13-1 16-7 20-3 23-5
24 Douglas Fir-Larch #1 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
24 Douglas Fir-Larch #2 8-0 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3
24 Douglas Fir-Larch #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9
24 Hem-Fir SS 8-7 13-6 17-10 22-9 Note b 8-7 12-10 16-3 19-10 23-0
24 Hem-Fir #1 8-4 12-3 15-6 18-11 21-11 7-3 10-7 13-5 16-4 19-0
24 Hem-Fir #2 7-11 11-7 14-8 17-10 20-9 6-10 10-0 12-8 15-6 17-11
24 Hem-Fir #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9
24 Southern Pine SS 8-11 14-1 18-6 23-8 Note b 8-11 13-10 17-6 20-10 24-8
24 Southern Pine #1 8-7 12-9 16-2 18-11 22-6 7-5 11-1 14-0 16-5 19-6
24 Southern Pine #2 7-4 11-0 13-11 16-6 19-6 6-4 9-6 12-1 14-4 16-10
24 Southern Pine #3 5-8 8-4 10-6 12-9 15-1 4-11 7-3 9-1 11-0 13-1
24 Spruce-Pine-Fir SS 8-5 13-3 17-5 21-8 25-2 8-4 12-2 15-4 18-9 21-9
24 Spruce-Pine-Fir #1 8-0 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3
24 Spruce-Pine-Fir #2 8-0 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3
24 Spruce-Pine-Fir #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the

rafters on the bearing walls, such as rafter ties, is provided at that location. Where ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be multiplied by the adjustment factors in Table 2308.7.2(7). b. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 10-5 16-4 21-7 Note b Note b 10-5 16-4 21-7 Note b Note b
12 Douglas Fir-Larch #1 10-0 15-9 20-10 Note b Note b 10-0 15-4 19-5 23-9 Note b
12 Douglas Fir-Larch #2 9-10 15-6 20-5 25-8 Note b 9-10 14-4 18-2 22-3 25-9
12 Douglas Fir-Larch #3 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
12 Hem-Fir SS 9-10 15-6 20-5 Note b Note b 9-10 15-6 20-5 Note b Note b
12 Hem-Fir #1 9-8 15-2 19-11 25-5 Note b 9-8 14-11 18-11 23-2 Note b
12 Hem-Fir #2 9-2 14-5 19-0 24-3 Note b 9-2 14-2 17-11 21-11 25-5
12 Hem-Fir #3 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
12 Southern Pine SS 10-3 16-1 21-2 Note b Note b 10-3 16-1 21-2 Note b Note b
12 Southern Pine #1 9-10 15-6 20-5 26-0 26-0 9-10 15-6 19-10 23-2 26-0
12 Southern Pine #2 9-5 14-9 19-6 23-5 26-0 9-0 13-6 17-1 20-3 23-10
12 Southern Pine #3 8-0 11-9 14-10 18-0 21-4 6-11 10-2 12-10 15-7 18-6
12 Spruce-Pine-Fir SS 9-8 15-2 19-11 25-5 Note b 9-8 15-2 19-11 25-5 Note b
12 Spruce-Pine-Fir #1 9-5 14-9 19-6 24-10 Note b 9-5 14-4 18-2 22-3 25-9
12 Spruce-Pine-Fir #2 9-5 14-9 19-6 24-10 Note b 9-5 14-4 18-2 22-3 25-9
12 Spruce-Pine-Fir #3 8-7 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
16 Douglas Fir-Larch SS 9-6 14-11 19-7 25-0 Note b 9-6 14-11 19-7 24-9 Note b
16 Douglas Fir-Larch #1 9-1 14-4 18-11 23-9 Note b 9-1 13-3 16-10 20-7 23-10
16 Douglas Fir-Larch #2 8-11 14-1 18-2 22-3 25-9 8-6 12-5 15-9 19-3 22-4
16 Douglas Fir-Larch #3 7-5 10-10 13-9 16-9 19-6 6-5 9-5 11-11 14-6 16-10
16 Hem-Fir SS 8-11 14-1 18-6 23-8 Note b 8-11 14-1 18-6 23-8 Note b
16 Hem-Fir #1 8-9 13-9 18-1 23-1 Note b 8-9 12-11 16-5 20-0 23-3
16 Hem-Fir #2 8-4 13-1 17-3 21-11 25-5 8-4 12-3 15-6 18-11 22-0
16 Hem-Fir #3 7-5 10-10 13-9 16-9 19-6 6-5 9-5 11-11 14-6 16-10
16 Southern Pine SS 9-4 14-7 19-3 24-7 Note b 9-4 14-7 19-3 24-7 Note b
16 Southern Pine #1 8-11 14-1 18-6 23-2 26-0 8-11 13-7 17-2 20-1 23-10
16 Southern Pine #2 8-7 13-5 17-1 20-3 23-10 7-9 11-8 14-9 17-6 20-8
16 Southern Pine #3 6-11 10-2 12-10 15-7 18-6 6-0 8-10 11-2 13-6 16-0
16 Spruce-Pine-Fir SS 8-9 13-9 18-1 23-1 Note b 8-9 13-9 18-1 23-0 Note b
16 Spruce-Pine-Fir #1 8-7 13-5 17-9 22-3 25-9 8-6 12-5 15-9 19-3 22-4
16 Spruce-Pine-Fir #2 8-7 13-5 17-9 22-3 25-9 8-6 12-5 15-9 19-3 22-4
16 Spruce-Pine-Fir #3 7-5 10-10 13-9 16-9 19-6 6-5 9-5 11-11 14-6 16-10

(continued)

TABLE 2308.7.2(2)

RAFTER SPANS FOR COMMON LUMBER SPECIES (Roof live load = 20 psf, ceiling attached to rafters, L/Δ = 240)

23-68 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.2(2)—continued RAFTER SPANS FOR COMMON LUMBER SPECIES (Roof live load = 20 psf, ceiling attached to rafters, L/Δ = 240)

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 8-11 14-0 18-5 23-7 Note b 8-11 14-0 18-5 22-7 Note b
19.2 Douglas Fir-Larch #1 8-7 13-6 17-9 21-8 25-2 8-4 12-2 15-4 18-9 21-9
19.2 Douglas Fir-Larch #2 8-5 13-1 16-7 20-3 23-6 7-9 11-4 14-4 17-7 20-4
19.2 Douglas Fir-Larch #3 6-9 9-11 12-7 15-4 17-9 5-10 8-7 10-10 13-3 15-5
19.2 Hem-Fir SS 8-5 13-3 17-5 22-3 Note b 8-5 13-3 17-5 22-3 25-9
19.2 Hem-Fir #1 8-3 12-11 17-1 21-1 24-6 8-1 11-10 15-0 18-4 21-3
19.2 Hem-Fir #2 7-10 12-4 16-3 20-0 23-2 7-8 11-2 14-2 17-4 20-1
19.2 Hem-Fir #3 6-9 9-11 12-7 15-4 17-9 5-10 8-7 10-10 13-3 15-5
19.2 Southern Pine SS 8-9 13-9 18-2 23-1 Note b 8-9 13-9 18-2 23-1 Note b
19.2 Southern Pine #1 8-5 13-3 17-5 21-2 25-2 8-4 12-4 15-8 18-4 21-9
19.2 Southern Pine #2 8-1 12-3 15-7 18-6 21-9 7-1 10-8 13-6 16-0 18-10
19.2 Southern Pine #3 6-4 9-4 11-9 14-3 16-10 5-6 8-1 10-2 12-4 14-7
19.2 Spruce-Pine-Fir SS 8-3 12-11 17-1 21-9 Note b 8-3 12-11 17-1 21-0 24-4
19.2 Spruce-Pine-Fir #1 8-1 12-8 16-7 20-3 23-6 7-9 11-4 14-4 17-7 20-4
19.2 Spruce-Pine-Fir #2 8-1 12-8 16-7 20-3 23-6 7-9 11-4 14-4 17-7 20-4
19.2 Spruce-Pine-Fir #3 6-9 9-11 12-7 15-4 17-9 5-10 8-7 10-10 13-3 15-5
24 Douglas Fir-Larch SS 8-3 13-0 17-2 21-10 Note b 8-3 13-0 16-7 20-3 23-5
24 Douglas Fir-Larch #1 8-0 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6
24 Douglas Fir-Larch #2 7-10 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3
24 Douglas Fir-Larch #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9
24 Hem-Fir SS 7-10 12-3 16-2 20-8 25-1 7-10 12-3 16-2 19-10 23-0
24 Hem-Fir #1 7-8 12-0 15-6 18-11 21-11 7-3 10-7 13-5 16-4 19-0
24 Hem-Fir #2 7-3 11-5 14-8 17-10 20-9 6-10 10-0 12-8 15-6 17-11
24 Hem-Fir #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9
24 Southern Pine SS 8-1 12-9 16-10 21-6 Note b 8-1 12-9 16-10 20-10 24-8
24 Southern Pine #1 7-10 12-3 16-2 18-11 22-6 7-5 11-1 14-0 16-5 19-6
24 Southern Pine #2 7-4 11-0 13-11 16-6 19-6 6-4 9-6 12-1 14-4 16-10
24 Southern Pine #3 5-8 8-4 10-6 12-9 15-1 4-11 7-3 9-1 11-0 13-1
24 Spruce-Pine-Fir SS 7-8 12-0 15-10 20-2 24-7 7-8 12-0 15-4 18-9 21-9
24 Spruce-Pine-Fir #1 7-6 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3
24 Spruce-Pine-Fir #2 7-6 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3
24 Spruce-Pine-Fir #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the

rafters on the bearing walls, such as rafter ties, is provided at that location. Where ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be multiplied by the adjustment factors in Table 2308.7.2(7). b. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 10-0 15-9 20-9 Note b Note b 10-0 15-9 20-1 24-6 Note b
12 Douglas Fir-Larch #1 9-8 14-9 18-8 22-9 Note b 9-0 13-2 16-8 20-4 23-7
12 Douglas Fir-Larch #2 9-5 13-9 17-5 21-4 24-8 8-5 12-4 15-7 19-1 22-1
12 Douglas Fir-Larch #3 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
12 Hem-Fir SS 9-6 14-10 19-7 25-0 Note b 9-6 14-10 19-7 24-1 Note b
12 Hem-Fir #1 9-3 14-4 18-2 22-2 25-9 8-9 12-10 16-3 19-10 23-0
12 Hem-Fir #2 8-10 13-7 17-2 21-0 24-4 8-4 12-2 15-4 18-9 21-9
12 Hem-Fir #3 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
12 Southern Pine SS 9-10 15-6 20-5 Note b Note b 9-10 15-6 20-5 25-4 Note b
12 Southern Pine #1 9-6 14-10 19-0 22-3 26-0 9-0 13-5 17-0 19-11 23-7
12 Southern Pine #2 8-7 12-11 16-4 19-5 22-10 7-8 11-7 14-8 17-4 20-5
12 Southern Pine #3 6-7 9-9 12-4 15-0 17-9 5-11 8-9 11-0 13-5 15-10
12 Spruce-Pine-Fir SS 9-3 14-7 19-2 24-6 Note b 9-3 14-7 18-8 22-9 Note b
12 Spruce-Pine-Fir #1 9-1 13-9 17-5 21-4 24-8 8-5 12-4 15-7 19-1 22-1
12 Spruce-Pine-Fir #2 9-1 13-9 17-5 21-4 24-8 8-5 12-4 15-7 19-1 22-1
12 Spruce-Pine-Fir #3 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
16 Douglas Fir-Larch SS 9-1 14-4 18-10 23-9 Note b 9-1 13-9 17-5 21-3 24-8
16 Douglas Fir-Larch #1 8-9 12-9 16-2 19-9 22-10 7-10 11-5 14-5 17-8 20-5
16 Douglas Fir-Larch #2 8-2 11-11 15-1 18-5 21-5 7-3 10-8 13-6 16-6 19-2
16 Douglas Fir-Larch #3 6-2 9-0 11-5 13-11 16-2 5-6 8-1 10-3 12-6 14-6
16 Hem-Fir SS 8-7 13-6 17-10 22-9 Note b 8-7 13-6 17-1 20-10 24-2
16 Hem-Fir #1 8-5 12-5 15-9 19-3 22-3 7-7 11-1 14-1 17-2 19-11
16 Hem-Fir #2 8-0 11-9 14-11 18-2 21-1 7-2 10-6 13-4 16-3 18-10
16 Hem-Fir #3 6-2 9-0 11-5 13-11 16-2 5-6 8-1 10-3 12-6 14-6
16 Southern Pine SS 8-11 14-1 18-6 23-8 Note b 8-11 14-1 18-5 21-11 25-11
16 Southern Pine #1 8-7 13-0 16-6 19-3 22-10 7-10 11-7 14-9 17-3 20-5
16 Southern Pine #2 7-6 11-2 14-2 16-10 19-10 6-8 10-0 12-8 15-1 17-9
16 Southern Pine #3 5-9 8-6 10-8 13-0 15-4 5-2 7-7 9-7 11-7 13-9
16 Spruce-Pine-Fir SS 8-5 13-3 17-5 22-1 25-7 8-5 12-9 16-2 19-9 22-10
16 Spruce-Pine-Fir #1 8-2 11-11 15-1 18-5 21-5 7-3 10-8 13-6 16-6 19-2
16 Spruce-Pine-Fir #2 8-2 11-11 15-1 18-5 21-5 7-3 10-8 13-6 16-6 19-2
16 Spruce-Pine-Fir #3 6-2 9-0 11-5 13-11 16-2 5-6 8-1 10-3 12-6 14-6

(continued)

TABLE 2308.7.2(3)

RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 30 psf, ceiling not attached to rafters, L/Δ = 180)

23-70 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.2(3)—continued RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 30 psf, ceiling not attached to rafters, L/Δ = 180)

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 8-7 13-6 17-9 21-8 25-2 8-7 12-6 15-10 19-5 22-6
19.2 Douglas Fir-Larch #1 7-11 11-8 14-9 18-0 20-11 7-1 10-5 13-2 16-1 18-8
19.2 Douglas Fir-Larch #2 7-5 10-11 13-9 16-10 19-6 6-8 9-9 12-4 15-1 17-6
19.2 Douglas Fir-Larch #3 5-7 8-3 10-5 12-9 14-9 5-0 7-4 9-4 11-5 13-2
19.2 Hem-Fir SS 8-1 12-9 16-9 21-4 24-8 8-1 12-4 15-7 19-1 22-1
19.2 Hem-Fir #1 7-9 11-4 14-4 17-7 20-4 6-11 10-2 12-10 15-8 18-2
19.2 Hem-Fir #2 7-4 10-9 13-7 16-7 19-3 6-7 9-7 12-2 14-10 17-3
19.2 Hem-Fir #3 5-7 8-3 10-5 12-9 14-9 5-0 7-4 9-4 11-5 13-2
19.2 Southern Pine SS 8-5 13-3 17-5 22-3 Note b 8-5 13-3 16-10 20-0 23-7
19.2 Southern Pine #1 8-0 11-10 15-1 17-7 20-11 7-1 10-7 13-5 15-9 18-8
19.2 Southern Pine #2 6-10 10-2 12-11 15-4 18-1 6-1 9-2 11-7 13-9 16-2
19.2 Southern Pine #3 5-3 7-9 9-9 11-10 14-0 4-8 6-11 8-9 10-7 12-6
19.2 Spruce-Pine-Fir SS 7-11 12-5 16-5 20-2 23-4 7-11 11-8 14-9 18-0 20-11
19.2 Spruce-Pine-Fir #1 7-5 10-11 13-9 16-10 19-6 6-8 9-9 12-4 15-1 17-6
19.2 Spruce-Pine-Fir #2 7-5 10-11 13-9 16-10 19-6 6-8 9-9 12-4 15-1 17-6
19.2 Spruce-Pine-Fir #3 5-7 8-3 10-5 12-9 14-9 5-0 7-4 9-4 11-5 13-2
24 Douglas Fir-Larch SS 7-11 12-6 15-10 19-5 22-6 7-8 11-3 14-2 17-4 20-1
24 Douglas Fir-Larch #1 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
24 Douglas Fir-Larch #2 6-8 9-9 12-4 15-1 17-6 5-11 8-8 11-0 13-6 15-7
24 Douglas Fir-Larch #3 5-0 7-4 9-4 11-5 13-2 4-6 6-7 8-4 10-2 11-10
24 Hem-Fir SS 7-6 11-10 15-7 19-1 22-1 7-6 11-0 13-11 17-0 19-9
24 Hem-Fir #1 6-11 10-2 12-10 15-8 18-2 6-2 9-1 11-6 14-0 16-3
24 Hem-Fir #2 6-7 9-7 12-2 14-10 17-3 5-10 8-7 10-10 13-3 15-5
24 Hem-Fir #3 5-0 7-4 9-4 11-5 13-2 4-6 6-7 8-4 10-2 11-10
24 Southern Pine SS 7-10 12-3 16-2 20-0 23-7 7-10 11-10 15-0 17-11 21-2
24 Southern Pine #1 7-1 10-7 13-5 15-9 18-8 6-4 9-6 12-0 14-1 16-8
24 Southern Pine #2 6-1 9-2 11-7 13-9 16-2 5-5 8-2 10-4 12-3 14-6
24 Southern Pine #3 4-8 6-11 8-9 10-7 12-6 4-2 6-2 7-10 9-6 11-2
24 Spruce-Pine-Fir SS 7-4 11-7 14-9 18-0 20-11 7-1 10-5 13-2 16-1 18-8
24 Spruce-Pine-Fir #1 6-8 9-9 12-4 15-1 17-6 5-11 8-8 11-0 13-6 15-7
24 Spruce-Pine-Fir #2 6-8 9-9 12-4 15-1 17-6 5-11 8-8 11-0 13-6 15-7
24 Spruce-Pine-Fir #3 5-0 7-4 9-4 11-5 13-2 4-6 6-7 8-4 10-2 11-10

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the

rafters on the bearing walls, such as rafter ties, is provided at that location. Where ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be multiplied by the adjustment factors in Table 2308.7.2(7). b. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 8-5 13-3 17-6 22-4 26-0 8-5 13-3 17-0 20-9 24-0
12 Douglas Fir-larch #1 8-2 12-0 15-3 18-7 21-7 7-7 11-2 14-1 17-3 20-0
12 Douglas Fir-larch #2 7-8 11-3 14-3 17-5 20-2 7-1 10-5 13-2 16-1 18-8
12 Douglas Fir-larch #3 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
12 Hem-Fir SS 8-0 12-6 16-6 21-1 25-6 8-0 12-6 16-6 20-4 23-7
12 Hem-Fir #1 7-10 11-9 14-10 18-1 21-0 7-5 10-10 13-9 16-9 19-5
12 Hem-Fir #2 7-5 11-1 14-0 17-2 19-11 7-0 10-3 13-0 15-10 18-5
12 Hem-Fir #3 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
12 Southern Pine SS 8-4 13-1 17-2 21-11 Note b 8-4 13-1 17-2 21-5 25-3
12 Southern Pine #1 8-0 12-3 15-6 18-2 21-7 7-7 11-4 14-5 16-10 20-0
12 Southern Pine #2 7-0 10-6 13-4 15-10 18-8 6-6 9-9 12-4 14-8 17-3
12 Southern Pine #3 5-5 8-0 10-1 12-3 14-6 5-0 7-5 9-4 11-4 13-5
12 Spruce-Pine-Fir SS 7-10 12-3 16-2 20-8 24-1 7-10 12-3 15-9 19-3 22-4
12 Spruce-Pine-Fir #1 7-8 11-3 14-3 17-5 20-2 7-1 10-5 13-2 16-1 18-8
12 Spruce-Pine-Fir #2 7-8 11-3 14-3 17-5 20-2 7-1 10-5 13-2 16-1 18-8
12 Spruce-Pine-Fir #3 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
16 Douglas Fir-Larch SS 7-8 12-1 15-10 19-5 22-6 7-8 11-7 14-8 17-11 20-10
16 Douglas Fir-Larch #1 7-1 10-5 13-2 16-1 18-8 6-7 9-8 12-2 14-11 17-3
16 Douglas Fir-Larch #2 6-8 9-9 12-4 15-1 17-6 6-2 9-0 11-5 13-11 16-2
16 Douglas Fir-Larch #3 5-0 7-4 9-4 11-5 13-2 4-8 6-10 8-8 10-6 12-3
16 Hem-Fir SS 7-3 11-5 15-0 19-1 22-1 7-3 11-5 14-5 17-8 20-5
16 Hem-Fir #1 6-11 10-2 12-10 15-8 18-2 6-5 9-5 11-11 14-6 16-10
16 Hem-Fir #2 6-7 9-7 12-2 14-10 17-3 6-1 8-11 11-3 13-9 15-11
16 Hem-Fir #3 5-0 7-4 9-4 11-5 13-2 4-8 6-10 8-8 10-6 12-3
16 Southern Pine SS 7-6 11-10 15-7 19-11 23-7 7-6 11-10 15-7 18-6 21-10
16 Southern Pine #1 7-1 10-7 13-5 15-9 18-8 6-7 9-10 12-5 14-7 17-3
16 Southern Pine #2 6-1 9-2 11-7 13-9 16-2 5-8 8-5 10-9 12-9 15-0
16 Southern Pine #3 4-8 6-11 8-9 10-7 12-6 4-4 6-5 8-1 9-10 11-7
16 Spruce-Pine-Fir SS 7-1 11-2 14-8 18-0 20-11 7-1 10-9 13-8 15-11 19-4
16 Spruce-Pine-Fir #1 6-8 9-9 12-4 15-1 17-6 6-2 9-0 11-5 13-11 16-2
16 Spruce-Pine-Fir #2 6-8 9-9 12-4 15-1 17-6 6-2 9-0 11-5 13-11 16-2
16 Spruce-Pine-Fir #3 5-0 7-4 9-4 11-5 13-2 4-8 6-10 8-8 10-6 12-3

(continued)

TABLE 2308.7.2(4)

RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 50 psf, ceiling not attached to rafters, L/Δ = 180)

23-72 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.2(4)—continued RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 50 psf, ceiling not attached to rafters, L/Δ = 180)

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 7-3 11-4 14-6 17-8 20-6 7-3 10-7 13-5 16-5 19-0
19.2 Douglas Fir-Larch #1 6-6 9-6 12-0 14-8 17-1 6-0 8-10 11-2 13-7 15-9
19.2 Douglas Fir-Larch #2 6-1 8-11 11-3 13-9 15-11 5-7 8-3 10-5 12-9 14-9
19.2 Douglas Fir-Larch #3 4-7 6-9 8-6 10-5 12-1 4-3 6-3 7-11 9-7 11-2
19.2 Hem-Fir SS 6-10 10-9 14-2 17-5 20-2 6-10 10-5 13-2 16-1 18-8
19.2 Hem-Fir #1 6-4 9-3 11-9 14-4 16-7 5-10 8-7 10-10 13-3 15-5
19.2 Hem-Fir #2 6-0 8-9 11-1 13-7 15-9 5-7 8-1 10-3 12-7 14-7
19.2 Hem-Fir #3 4-7 6-9 8-6 10-5 12-1 4-3 6-3 7-11 9-7 11-2
19.2 Southern Pine SS 7-1 11-2 14-8 18-3 21-7 7-1 11-2 14-2 16-11 20-0
19.2 Southern Pine #1 6-6 9-8 12-3 14-4 17-1 6-0 9-0 11-4 13-4 15-9
19.2 Southern Pine #2 5-7 8-4 10-7 12-6 14-9 5-2 7-9 9-9 11-7 13-8
19.2 Southern Pine #3 4-3 6-4 8-0 9-8 11-5 4-0 5-10 7-4 8-11 10-7
19.2 Spruce-Pine-Fir SS 6-8 10-6 13-5 16-5 19-1 6-8 9-10 12-5 15-3 17-8
19.2 Spruce-Pine-Fir #1 6-1 8-11 11-3 13-9 15-11 5-7 8-3 10-5 12-9 14-9
19.2 Spruce-Pine-Fir #2 6-1 8-11 11-3 13-9 15-11 5-7 8-3 10-5 12-9 14-9
19.2 Spruce-Pine-Fir #3 4-7 6-9 8-6 10-5 12-1 4-3 6-3 7-11 9-7 11-2
24 Douglas Fir-Larch SS 6-8 10-3 13-0 15-10 18-4 6-6 9-6 12-0 14-8 17-0
24 Douglas Fir-Larch #1 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
24 Douglas Fir-Larch #2 5-5 7-11 10-1 12-4 14-3 5-0 7-4 9-4 11-5 13-2
24 Douglas Fir-Larch #3 4-1 6-0 7-7 9-4 10-9 3-10 5-7 7-1 8-7 10-0
24 Hem-Fir SS 6-4 9-11 12-9 15-7 18-0 6-4 9-4 11-9 14-5 16-8
24 Hem-Fir #1 5-8 8-3 10-6 12-10 14-10 5-3 7-8 9-9 11-10 13-9
24 Hem-Fir #2 5-4 7-10 9-11 12-1 14-1 4-11 7-3 9-2 11-3 13-0
24 Hem-Fir #3 4-1 6-0 7-7 9-4 10-9 3-10 5-7 7-1 8-7 10-0
24 Southern Pine SS 6-7 10-4 13-8 16-4 19-3 6-7 10-0 12-8 15-2 17-10
24 Southern Pine #1 5-10 8-8 11-0 12-10 15-3 5-5 8-0 10-2 11-11 14-1
24 Southern Pine #2 5-0 7-5 9-5 11-3 13-2 4-7 6-11 8-9 10-5 12-3
24 Southern Pine #3 3-10 5-8 7-1 8-8 10-3 3-6 5-3 6-7 8-0 9-6
24 Spruce-Pine-Fir SS 6-2 9-6 12-0 14-8 17-1 6-0 8-10 11-2 13-7 15-9
24 Spruce-Pine-Fir #1 5-5 7-11 10-1 12-4 14-3 5-0 7-4 9-4 11-5 13-2
24 Spruce-Pine-Fir #2 5-5 7-11 10-1 12-4 14-3 5-0 7-4 9-4 11-5 13-2
24 Spruce-Pine-Fir #3 4-1 6-0 7-7 9-4 10-9 3-10 5-7 7-1 8-7 10-0

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the

rafters on the bearing walls, such as rafter ties, is provided at that location. Where ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be multiplied by the adjustment factors in Table 2308.7.2(7). b. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 9-1 14-4 18-10 24-1 Note b 9-1 14-4 18-10 24-1 Note b
12 Douglas Fir-Larch #1 8-9 13-9 18-2 22-9 Note b 8-9 13-2 16-8 20-4 23-7
12 Douglas Fir-Larch #2 8-7 13-6 17-5 21-4 24-8 8-5 12-4 15-7 19-1 22-1
12 Douglas Fir-Larch #3 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
12 Hem-Fir SS 8-7 13-6 17-10 22-9 Note b 8-7 13-6 17-10 22-9 Note b
12 Hem-Fir #1 8-5 13-3 17-5 22-2 25-9 8-5 12-10 16-3 19-10 23-0
12 Hem-Fir #2 8-0 12-7 16-7 21-0 24-4 8-0 12-2 15-4 18-9 21-9
12 Hem-Fir #3 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
12 Southern Pine SS 8-11 14-1 18-6 23-8 Note b 8-11 14-1 18-6 23-8 Note b
12 Southern Pine #1 8-7 13-6 17-10 22-3 Note b 8-7 13-5 17-0 19-11 23-7
12 Southern Pine #2 8-3 12-11 16-4 19-5 22-10 7-8 11-7 14-8 17-4 20-5
12 Southern Pine #3 6-7 9-9 12-4 15-0 17-9 5-11 8-9 11-0 13-5 15-10
12 Spruce-Pine-Fir SS 8-5 13-3 17-5 22-3 Note b 8-5 13-3 17-5 22-3 Note b
12 Spruce-Pine-Fir #1 8-3 12-11 17-0 21-4 24-8 8-3 12-4 15-7 19-1 22-1
12 Spruce-Pine-Fir #2 8-3 12-11 17-0 21-4 24-8 8-3 12-4 15-7 19-1 22-1
12 Spruce-Pine-Fir #3 7-1 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
16 Douglas Fir-Larch SS 8-3 13-0 17-2 21-10 Note b 8-3 13-0 17-2 21-3 24-8
16 Douglas Fir-Larch #1 8-0 12-6 16-2 19-9 22-10 7-10 11-5 14-5 17-8 20-5
16 Douglas Fir-Larch #2 7-10 11-11 15-1 18-5 21-5 7-3 10-8 13-6 16-6 19-2
16 Douglas Fir-Larch #3 6-2 9-0 11-5 13-11 16-2 5-6 8-1 10-3 12-6 14-6
16 Hem-Fir SS 7-10 12-3 16-2 20-8 25-1 7-10 12-3 16-2 20-8 24-2
16 Hem-Fir #1 7-8 12-0 15-9 19-3 22-3 7-7 11-1 14-1 17-2 19-11
16 Hem-Fir #2 7-3 11-5 14-11 18-2 21-1 7-2 10-6 13-4 16-3 18-10
16 Hem-Fir #3 6-2 9-0 11-5 13-11 16-2 5-6 8-1 10-3 12-6 14-6
16 Southern Pine SS 8-1 12-9 16-10 21-6 Note b 8-1 12-9 16-10 21-6 25-11
16 Southern Pine #1 7-10 12-3 16-2 19-3 22-10 7-10 11-7 14-9 17-3 20-5
16 Southern Pine #2 7-6 11-2 14-2 16-10 19-10 6-8 10-0 12-8 15-1 17-9
16 Southern Pine #3 5-9 8-6 10-8 13-0 15-4 5-2 7-7 9-7 11-7 13-9
16 Spruce-Pine-Fir SS 7-8 12-0 15-10 20-2 24-7 7-8 12-0 15-10 19-9 22-10
16 Spruce-Pine-Fir #1 7-6 11-9 15-1 18-5 21-5 7-3 10-8 13-6 16-6 19-2
16 Spruce-Pine-Fir #2 7-6 11-9 15-1 18-5 21-5 7-3 10-8 13-6 16-6 19-2
16 Spruce-Pine-Fir #3 6-2 9-0 11-5 13-11 16-2 5-6 8-1 10-3 12-6 14-6

(continued)

TABLE 2308.7.2(5)

RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 30 psf, ceiling attached to rafters, L/Δ = 240)

23-74 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.2(5)—continued RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 30 psf, ceiling attached to rafters, L/Δ = 240)

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 7-9 12-3 16-1 20-7 25-0 7-9 12-3 15-10 19-5 22-6
19.2 Douglas Fir-Larch #1 7-6 11-8 14-9 18-0 20-11 7-1 10-5 13-2 16-1 18-8
19.2 Douglas Fir-Larch #2 7-4 10-11 13-9 16-10 19-6 6-8 9-9 12-4 15-1 17-6
19.2 Douglas Fir-Larch #3 5-7 8-3 10-5 12-9 14-9 5-0 7-4 9-4 11-5 13-2
19.2 Hem-Fir SS 7-4 11-7 15-3 19-5 23-7 7-4 11-7 15-3 19-1 22-1
19.2 Hem-Fir #1 7-2 11-4 14-4 17-7 20-4 6-11 10-2 12-10 15-8 18-2
19.2 Hem-Fir #2 6-10 10-9 13-7 16-7 19-3 6-7 9-7 12-2 14-10 17-3
19.2 Hem-Fir #3 5-7 8-3 10-5 12-9 14-9 5-0 7-4 9-4 11-5 13-2
19.2 Southern Pine SS 7-8 12-0 15-10 20-2 24-7 7-8 12-0 15-10 20-0 23-7
19.2 Southern Pine #1 7-4 11-7 15-1 17-7 20-11 7-1 10-7 13-5 15-9 18-8
19.2 Southern Pine #2 6-10 10-2 12-11 15-4 18-1 6-1 9-2 11-7 13-9 16-2
19.2 Southern Pine #3 5-3 7-9 9-9 11-10 14-0 4-8 6-11 8-9 10-7 12-6
19.2 Spruce-Pine-Fir SS 7-2 11-4 14-11 19-0 23-1 7-2 11-4 14-9 18-0 20-11
19.2 Spruce-Pine-Fir #1 7-0 10-11 13-9 16-10 19-6 6-8 9-9 12-4 15-1 17-6
19.2 Spruce-Pine-Fir #2 7-0 10-11 13-9 16-10 19-6 6-8 9-9 12-4 15-1 17-6
19.2 Spruce-Pine-Fir #3 5-7 8-3 10-5 12-9 14-9 5-0 7-4 9-4 11-5 13-2
24 Douglas Fir-Larch SS 7-3 11-4 15-0 19-1 22-6 7-3 11-3 14-2 17-4 20-1
24 Douglas Fir-Larch #1 7-0 10-5 13-2 16-1 18-8 6-4 9-4 11-9 14-5 16-8
24 Douglas Fir-Larch #2 6-8 9-9 12-4 15-1 17-6 5-11 8-8 11-0 13-6 15-7
24 Douglas Fir-Larch #3 5-0 7-4 9-4 11-5 13-2 4-6 6-7 8-4 10-2 11-10
24 Hem-Fir SS 6-10 10-9 14-2 18-0 21-11 6-10 10-9 13-11 17-0 19-9
24 Hem-Fir #1 6-8 10-2 12-10 15-8 18-2 6-2 9-1 11-6 14-0 16-3
24 Hem-Fir #2 6-4 9-7 12-2 14-10 17-3 5-10 8-7 10-10 13-3 15-5
24 Hem-Fir #3 5-0 7-4 9-4 11-5 13-2 4-6 6-7 8-4 10-2 11-10
24 Southern Pine SS 7-1 11-2 14-8 18-9 22-10 7-1 11-2 14-8 17-11 21-2
24 Southern Pine #1 6-10 10-7 13-5 15-9 18-8 6-4 9-6 12-0 14-1 16-8
24 Southern Pine #2 6-1 9-2 11-7 13-9 16-2 5-5 8-2 10-4 12-3 14-6
24 Southern Pine #3 4-8 6-11 8-9 10-7 12-6 4-2 6-2 7-10 9-6 11-2
24 Spruce-Pine-Fir SS 6-8 10-6 13-10 17-8 20-11 6-8 10-5 13-2 16-1 18-8
24 Spruce-Pine-Fir #1 6-6 9-9 12-4 15-1 17-6 5-11 8-8 11-0 13-6 15-7
24 Spruce-Pine-Fir #2 6-6 9-9 12-4 15-1 17-6 5-11 8-8 11-0 13-6 15-7
24 Spruce-Pine-Fir #3 5-0 7-4 9-4 11-5 13-2 4-6 6-7 8-4 10-2 11-10

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the

rafters on the bearing walls, such as rafter ties, is provided at that location. Where ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be multiplied by the adjustment factors in Table 2308.7.2(7). b. Span exceeds 26 feet in length.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
12 Douglas Fir-Larch SS 7-8 12-1 15-11 20-3 24-8 7-8 12-1 15-11 20-3 24-0
12 Douglas Fir-Larch #1 7-5 11-7 15-3 18-7 21-7 7-5 11-2 14-1 17-3 20-0
12 Douglas Fir-Larch #2 7-3 11-3 14-3 17-5 20-2 7-1 10-5 13-2 16-1 18-8
12 Douglas Fir-Larch #3 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
12 Hem-Fir SS 7-3 11-5 15-0 19-2 23-4 7-3 11-5 15-0 19-2 23-4
12 Hem-Fir #1 7-1 11-2 14-8 18-1 21-0 7-1 10-10 13-9 16-9 19-5
12 Hem-Fir #2 6-9 10-8 14-0 17-2 19-11 6-9 10-3 13-0 15-10 18-5
12 Hem-Fir #3 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
12 Southern Pine SS 7-6 11-10 15-7 19-11 24-3 7-6 11-10 15-7 19-11 24-3
12 Southern Pine #1 7-3 11-5 15-0 18-2 21-7 7-3 11-4 14-5 16-10 20-0
12 Southern Pine #2 6-11 10-6 13-4 15-10 18-8 6-6 9-9 12-4 14-8 17-3
12 Southern Pine #3 5-5 8-0 10-1 12-3 14-6 5-0 7-5 9-4 11-4 13-5
12 Spruce-Pine-Fir SS 7-1 11-2 14-8 18-9 22-10 7-1 11-2 14-8 18-9 22-4
12 Spruce-Pine-Fir #1 6-11 10-11 14-3 17-5 20-2 6-11 10-5 13-2 16-1 18-8
12 Spruce-Pine-Fir #2 6-11 10-11 14-3 17-5 20-2 6-11 10-5 13-2 16-1 18-8
12 Spruce-Pine-Fir #3 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
16 Douglas Fir-Larch SS 7-0 11-0 14-5 18-5 22-5 7-0 11-0 14-5 17-11 20-10
16 Douglas Fir-Larch #1 6-9 10-5 13-2 16-1 18-8 6-7 9-8 12-2 14-11 17-3
16 Douglas Fir-Larch #2 6-7 9-9 12-4 15-1 17-6 6-2 9-0 11-5 13-11 16-2
16 Douglas Fir-Larch #3 5-0 7-4 9-4 11-5 13-2 4-8 6-10 8-8 10-6 12-3
16 Hem-Fir SS 6-7 10-4 13-8 17-5 21-2 6-7 10-4 13-8 17-5 20-5
16 Hem-Fir #1 6-5 10-2 12-10 15-8 18-2 6-5 9-5 11-11 14-6 16-10
16 Hem-Fir #2 6-2 9-7 12-2 14-10 17-3 6-1 8-11 11-3 13-9 15-11
16 Hem-Fir #3 5-0 7-4 9-4 11-5 13-2 4-8 6-10 8-8 10-6 12-3
16 Southern Pine SS 6-10 10-9 14-2 18-1 22-0 6-10 10-9 14-2 18-1 21-10
16 Southern Pine #1 6-7 10-4 13-5 15-9 18-8 6-7 9-10 12-5 14-7 17-3
16 Southern Pine #2 6-1 9-2 11-7 13-9 16-2 5-8 8-5 10-9 12-9 15-0
16 Southern Pine #3 4-8 6-11 8-9 10-7 12-6 4-4 6-5 8-1 9-10 11-7
16 Spruce-Pine-Fir SS 6-5 10-2 13-4 17-0 20-9 6-5 10-2 13-4 16-8 19-4
16 Spruce-Pine-Fir #1 6-4 9-9 12-4 15-1 17-6 6-2 9-0 11-5 13-11 16-2
16 Spruce-Pine-Fir #2 6-4 9-9 12-4 15-1 17-6 6-2 9-0 11-5 13-11 16-2
16 Spruce-Pine-Fir #3 5-0 7-4 9-4 11-5 13-2 4-8 6-10 8-8 10-6 12-3

(continued)

TABLE 2308.7.2(6)

RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 50 psf, ceiling attached to rafters, L/Δ = 240)

23-76 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.2(6)—continued RAFTER SPANS FOR COMMON LUMBER SPECIES (Ground snow load = 50 psf, ceiling attached to rafters, L/Δ = 240)

RAFTER
SPACING
(inches)		 SPECIES AND GRADE DEAD LOAD = 10 psf DEAD LOAD = 20 psf
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12 2 × 4 2 × 6 2 × 8 2 × 10 2 × 12
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa Maximum rafter spansa
RAFTER
SPACING
(inches)		 SPECIES AND GRADE SPECIES AND GRADE (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)
19.2 Douglas Fir-Larch SS 6-7 10-4 13-7 17-4 20-6 6-7 10-4 13-5 16-5 19-0
19.2 Douglas Fir-Larch #1 6-4 9-6 12-0 14-8 17-1 6-0 8-10 11-2 13-7 15-9
19.2 Douglas Fir-Larch #2 6-1 8-11 11-3 13-9 15-11 5-7 8-3 10-5 12-9 14-9
19.2 Douglas Fir-Larch #3 4-7 6-9 8-6 10-5 12-1 4-3 6-3 7-11 9-7 11-2
19.2 Hem-Fir SS 6-2 9-9 12-10 16-5 19-11 6-2 9-9 12-10 16-1 18-8
19.2 Hem-Fir #1 6-1 9-3 11-9 14-4 16-7 5-10 8-7 10-10 13-3 15-5
19.2 Hem-Fir #2 5-9 8-9 11-1 13-7 15-9 5-7 8-1 10-3 12-7 14-7
19.2 Hem-Fir #3 4-7 6-9 8-6 10-5 12-1 4-3 6-3 7-11 9-7 11-2
19.2 Southern Pine SS 6-5 10-2 13-4 17-0 20-9 6-5 10-2 13-4 16-11 20-0
19.2 Southern Pine #1 6-2 9-8 12-3 14-4 17-1 6-0 9-0 11-4 13-4 15-9
19.2 Southern Pine #2 5-7 8-4 10-7 12-6 14-9 5-2 7-9 9-9 11-7 13-8
19.2 Southern Pine #3 4-3 6-4 8-0 9-8 11-5 4-0 5-10 7-4 8-11 10-7
19.2 Spruce-Pine-Fir SS 6-1 9-6 12-7 16-0 19-1 6-1 9-6 12-5 15-3 17-8
19.2 Spruce-Pine-Fir #1 5-11 8-11 11-3 13-9 15-11 5-7 8-3 10-5 12-9 14-9
19.2 Spruce-Pine-Fir #2 5-11 8-11 11-3 13-9 15-11 5-7 8-3 10-5 12-9 14-9
19.2 Spruce-Pine-Fir #3 4-7 6-9 8-6 10-5 12-1 4-3 6-3 7-11 9-7 11-2
24 Douglas Fir-Larch SS 6-1 9-7 12-7 15-10 18-4 6-1 9-6 12-0 14-8 17-0
24 Douglas Fir-Larch #1 5-10 8-6 10-9 13-2 15-3 5-5 7-10 10-0 12-2 14-1
24 Douglas Fir-Larch #2 5-5 7-11 10-1 12-4 14-3 5-0 7-4 9-4 11-5 13-2
24 Douglas Fir-Larch #3 4-1 6-0 7-7 9-4 10-9 3-10 5-7 7-1 8-7 10-0
24 Hem-Fir SS 5-9 9-1 11-11 15-2 18-0 5-9 9-1 11-9 14-5 15-11
24 Hem-Fir #1 5-8 8-3 10-6 12-10 14-10 5-3 7-8 9-9 11-10 13-9
24 Hem-Fir #2 5-4 7-10 9-11 12-1 14-1 4-11 7-3 9-2 11-3 13-0
24 Hem-Fir #3 4-1 6-0 7-7 9-4 10-9 3-10 5-7 7-1 8-7 10-0
24 Southern Pine SS 6-0 9-5 12-5 15-10 19-3 6-0 9-5 12-5 15-2 17-10
24 Southern Pine #1 5-9 8-8 11-0 12-10 15-3 5-5 8-0 10-2 11-11 14-1
24 Southern Pine #2 5-0 7-5 9-5 11-3 13-2 4-7 6-11 8-9 10-5 12-3
24 Southern Pine #3 3-10 5-8 7-1 8-8 10-3 3-6 5-3 6-7 8-0 9-6
24 Spruce-Pine-Fir SS 5-8 8-10 11-8 14-8 17-1 5-8 8-10 11-2 13-7 15-9
24 Spruce-Pine-Fir #1 5-5 7-11 10-1 12-4 14-3 5-0 7-4 9-4 11-5 13-2
24 Spruce-Pine-Fir #2 5-5 7-11 10-1 12-4 14-3 5-0 7-4 9-4 11-5 13-2
24 Spruce-Pine-Fir #3 4-1 6-0 7-7 9-4 10-9 3-10 5-7 7-1 8-7 10-0

Check sources for availability of lumber in lengths greater than 20 feet. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. a. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the

rafters on the bearing walls, such as rafter ties, is provided at that location. Where ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be multiplied by the adjustment factors in Table 2308.7.2(7).

TABLE 2308.7.2(7)

RAFTER SPAN ADJUSTMENT FACTOR

H /H a
C R		 RAFTER SPAN ADJUSTMENT FACTOR
1/3 0.67
1/4 0.76
1/5 0.83
1/6 0.90
1/7.5 or less 1.00

a. HC = Height of ceiling joists or rafter ties measured vertically above the top of the rafter support walls;

HR = Height of roof ridge measured vertically above the top of the rafter support walls.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.3.1

RAFTER TIE CONNECTIONS i

RAFTER
SLOPE		 TIE
SPACING
(inches)		 LIVE LOAD ONLYg GROUND SNOW LOAD (pounds per square foot)
RAFTER
SLOPE		 TIE
SPACING
(inches)		 LIVE LOAD ONLYg LIVE LOAD ONLYg LIVE LOAD ONLYg 30 pounds per square foot 30 pounds per square foot 30 pounds per square foot 50 pounds per square foot 50 pounds per square foot 50 pounds per square foot
RAFTER
SLOPE		 TIE
SPACING
(inches)		 Roof span (feet) Roof span (feet) Roof span (feet) Roof span (feet) Roof span (feet) Roof span (feet) Roof span (feet) Roof span (feet) Roof span (feet)
RAFTER
SLOPE		 TIE
SPACING
(inches)		 12 24 36 12 24 36 12 24 36
RAFTER
SLOPE		 TIE
SPACING
(inches)		 Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h Required number of 16d common (31/2" x 0.162") nails per connectiona, b, c, d, e, f, h
3:12 12 3 5 8 3 6 9 5 9 13
3:12 16 4 7 10 4 8 12 6 12 17
3:12 19.2 4 8 12 5 10 14 7 14 21
3:12 24 5 10 15 6 12 18 9 17 26
3:12 32 7 13 20 8 16 24 12 23 34
3:12 48 10 20 29 12 24 35 17 34 51
4:12 12 3 4 6 3 5 7 4 7 10
4:12 16 3 5 8 3 6 9 5 9 13
4:12 19.2 3 6 9 4 7 11 6 11 16
4:12 24 4 8 11 5 9 13 7 13 19
4:12 32 5 10 15 6 12 18 9 17 26
4:12 48 8 15 22 9 18 26 13 26 38
5:12 12 3 3 5 3 4 6 3 6 8
5:12 16 3 4 6 3 5 7 4 7 11
5:12 19.2 3 5 7 3 6 9 5 9 13
5:12 24 3 6 9 4 7 11 6 11 16
5:12 32 4 8 12 5 10 14 7 14 21
5:12 48 6 12 18 7 14 21 11 21 31
7:12 12 3 3 4 3 3 4 3 4 6
7:12 16 3 3 5 3 4 5 3 5 8
7:12 19.2 3 4 5 3 4 6 3 6 9
7:12 24 3 5 7 3 5 8 4 8 11
7:12 32 3 6 9 4 7 10 5 10 15
7:12 48 5 9 13 5 10 15 8 15 22
9:12 12 3 3 3 3 3 3 3 3 5
9:12 16 3 3 4 3 3 4 3 4 6
9:12 19.2 3 3 4 3 4 5 3 5 7
9:12 24 3 4 5 3 4 6 3 6 9
9:12 32 3 5 7 3 6 8 4 8 12
9:12 48 4 7 10 4 8 12 6 12 17
12:12 12 3 3 3 3 3 3 3 3 4
12:12 16 3 3 3 3 3 3 3 3 5
12:12 19.2 3 3 3 3 3 4 3 4 6
12:12 24 3 3 4 3 3 5 3 5 7
12:12 32 3 4 5 3 4 6 3 6 9
12:12 48 3 5 8 3 6 9 5 9 13

For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.8 N/m 2 . a. 10d common (3″ × 0.148″) nails shall be permitted to be substituted for 16d common (3 1 /2″ × 0.162″) nails where the required number of nails is taken as 1.2

times the required number of 16d common nails, rounded up to the next full nail. b. Rafter tie heel joint connections are not required where the ridge is supported by a load-bearing wall, header or ridge beam. c. Where intermediate support of the rafter is provided by vertical struts or purlins to a load-bearing wall, the tabulated heel joint connection requirements are

permitted to be reduced proportionally to the reduction in span. d. Equivalent nailing patterns are required for ceiling joist to ceiling joist lap splices. e. Connected members shall be of sufficient size to prevent splitting due to nailing. f. For snow loads less than 30 pounds per square foot, the required number of nails is permitted to be reduced by multiplying by the ratio of actual snow load

plus 10 divided by 40, but not less than the number required for no snow load. g. Applies to roof live load of 20 psf or less. h. Tabulated heel joint connection requirements assume that ceiling joists or rafter ties are located at the bottom of the attic space. Where ceiling joists or rafter

ties are located higher in the attic, heel joint connection requirements shall be increased by the adjustment factors in Table 2308.7.3.1(1). i. Tabulated requirements are based on 10 psf roof dead load in combination with the specified roof snow load and roof live load.

23-78 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.3.1(1)

HEEL JOINT CONNECTION ADJUSTMENT FACTORS

H /H a, b
C R		 HEEL JOINT CONNECTION ADJUSTMENT FACTOR
1/3 1.5
1/4 1.33
1/5 1.25
1/6 1.2
1/10 or less 1.11

a. HC = Height of ceiling joists or rafter ties measured vertically from the top of the rafter support walls to the bottom of the ceiling joists or rafter ties;

HR = Height of roof ridge measured vertically from the top of the rafter support walls to the bottom of the roof ridge. b. Where HC/HR exceeds 1/3, connections shall be designed in accordance with accepted engineering practice.

TABLE 2308.7.12

ALLOWABLE SPANS FOR 2-INCH TONGUE-AND-GROOVE DECKING

SPANa
(feet)		 LIVE LOAD
(pounds per square foot)		 DEFLECTION LIMIT BENDING STRESS (f)
(pounds per square inch)		 MODULUS OF ELASTICITY
(E) (pounds per square inch)
Roofs Roofs Roofs Roofs Roofs
4 20 1/240
1/360		 160 170,000
256,000
4 30 1/240
1/360		 210 256,000
384,000
4 40 1/240
1/360		 270 340,000
512,000
4.5 20 1/240
1/360		 200 242,000
305,000
4.5 30 1/240
1/360		 270 363,000
405,000
4.5 40 1/240
1/360		 350 484,000
725,000
5.0 20 1/240
1/360		 250 332,000
500,000
5.0 30 1/240
1/360		 330 495,000
742,000
5.0 40 1/240
1/360		 420 660,000
1,000,000
5.5 20 1/240
1/360		 300 442,000
660,000
5.5 30 1/240
1/360		 400 662,000
998,000
5.5 40 1/240
1/360		 500 884,000
1,330,000
6.0 20 1/240
1/360		 360 575,000
862,000
6.0 30 1/240
1/360		 480 862,000
1,295,000
6.0 40 1/240
1/360		 600 1,150,000
1,730,000

(continued)

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

WOOD

TABLE 2308.7.12—continued ALLOWABLE SPANS FOR 2-INCH TONGUE-AND-GROOVE DECKING

SPANa
(feet)		 LIVE LOAD
(pounds per square foot)		 DEFLECTION LIMIT BENDING STRESS (f)
(pounds per square inch)		 MODULUS OF ELASTICITY
(E) (pounds per square inch)
Roofs Roofs Roofs Roofs Roofs
6.5 20 1/240
1/360		 420 595,000
892,000
6.5 30 1/240
1/360		 560 892,000
1,340,000
6.5 40 1/240
1/360		 700 1,190,000
1,730,000
7.0 20 1/240
1/360		 490 910,000
1,360,000
7.0 30 1/240
1/360		 650 1,370,000
2,000,000
7.0 40 1/240
1/360		 810 1,820,000
2,725,000
7.5 20 1/240
1/360		 560 1,125,000
1,685,000
7.5 30 1/240
1/360		 750 1,685,000
2,530,000
7.5 40 1/240
1/360		 930 2,250,000
3,380,000
8.0 20 1/240
1/360		 640 1,360,000
2,040,000
8.0 30 1/240
1/360		 850 2,040,000
3,060,000
Floors Floors Floors Floors Floors
4
4.5
5.0		 40 1/360 840
950
1,060		 1,000,000
1,300,000
1,600,000

For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kN/m 2, 1 pound per square inch = 0.00689 N/mm 2 . a. Spans are based on simple beam action with 10 pounds per square foot dead load and provisions for a 300-pound concentrated load on a 12-inch width of

decking. Random layup is permitted in accordance with the provisions of Section 2308.7.12. Lumber thickness is 1 1 /2 inches nominal.

23-80 2022 CALIFORNIA BUILDING CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

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▸Contents — California Building Code (Title 24, Part 2)
California Building Code (Title 24, Part 2)
  1. Chapter 2 — DEFINITIONS AND ABBREVIATIONS
  2. Appendix G — FLOOD-RESISTANT
  3. Appendix L — EARTHQUAKE RECORDING
  4. Appendix M — TSUNAMI-GENERATED
  5. Appendix N — REPLICABLE
  6. Appendix O — PERFORMANCE-BASED
  7. Chapter 1 — SCOPE AND ADMINISTRATION
  8. Chapter 3 — OCCUPANCY CLASSIFICATION AND USE
  9. Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY A…
  10. Chapter 5 — GENERAL BUILDING HEIGHTS AND AREAS
  11. Chapter 6 — TYPES OF CONSTRUCTION
  12. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  13. Chapter 7A — MATERIALS AND CONSTRUCTION
  14. Chapter 8 — INTERIOR FINISHES
  15. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  16. Chapter 10 — MEANS OF EGRESS
  17. Chapter 11A — HOUSING ACCESSIBILITY
  18. Chapter 11B — ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMM…
  19. Chapter 12 — INTERIOR ENVIRONMENT
  20. Chapter 14 — EXTERIOR WALLS
  21. Chapter 15 — ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
  22. Chapter 16 — STRUCTURAL DESIGN
  23. Chapter 16A — STRUCTURAL DESIGN
  24. Chapter 17 — SPECIAL INSPECTIONS AND TESTS
  25. Chapter 18 — SOILS AND FOUNDATIONS
  26. Chapter 19 — CONCRETE
  27. Chapter 20 — ALUMINUM
  28. Chapter 21 — MASONRY
  29. Chapter 22 — STEEL
  30. ▸Chapter 23 — WOOD
    Overview
    1. Section 2301
    2. Section 2302
    3. Section 2303
    4. Section 2304
    5. Section 2305
    6. Section 2306
    7. Section 2307
    8. Section 2308
    9. Section 2309
  31. Chapter 24 — GLASS AND GLAZING
  32. Chapter 25 — GYPSUM BOARD, GYPSUM PANEL PRODUCTS AND PLASTER
  33. Chapter 26 — PLASTIC
  34. Chapter 27 — ELECTRICAL
  35. Chapter 28 — MECHANICAL SYSTEMS
  36. Chapter 30 — ELEVATORS AND CONVEYING SYSTEMS
  37. Chapter 31 — SPECIAL CONSTRUCTION
  38. Chapter 31B — PUBLIC POOLS
  39. Chapter 31C — RADIATION
  40. Chapter 31D — FOOD ESTABLISHMENTS
  41. Chapter 31F — MARINE OIL TERMINALS
  42. Chapter 32 — ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
  43. Chapter 33 — SAFEGUARDS DURING CONSTRUCTION
  44. Chapter 35 — REFERENCED STANDARDS
  45. Appendix A — EMPLOYEE QUALIFICATIONS
  46. Appendix B — BOARD OF APPEALS
  47. Appendix C — GROUP U – AGRICULTURAL BUILDINGS
  48. Appendix D — FIRE DISTRICTS
  49. Appendix F — RODENTPROOFING
  50. Appendix H — SIGNS
  51. Appendix I — PATIO COVERS
  52. Appendix J — GRADING
  53. Appendix K — GROUP R-3 AND GROUP R-3.1 OCCUPANCIES
  54. Appendix P — EMERGENCY HOUSING

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